Five works performed between 2005-2007 as a soloist: (1) St Matthew Passion, Johann Sebastian Bach (1685-1750) ; (2) Colours of Night, Alessandro Stradella (1639-1682) ; (3) Idomeneo, Wolfgang Amadeus Mozart (1756-1791) ; (4) Cantatas BWV 79, 80, 140, Johann Sebastian Bach (1685-1750) ; (5) Cantatas BWV 27, 46, 78, 105 Johann Sebastian Bach (1685-1750). This portfolio examines the role of vocal nuance and inflection in relation to text, elements of musical expression and affect (referring to the ability of the performer to move the emotions or passions of the audience). The portfolio data, developed through music rehearsal and live performance, underlines modes in which the singing voice conveys both textual meaning and the communication of emotion in 18th-century vocal repertoire.